Platinum and fancy grayish-blue diamond ring. Photo Sotheby's

Centered by an emerald-cut fancy grayish-blue diamond weighing 1.15 carats, flanked by four baguette near colorless diamonds weighing approximately .25 carat, size 3¾. Estimate 100,000 — 150,000. Lot Sold: 134,500 USD

Accompanied by GIA report no. 2101270678 stating that the diamond is Fancy Grayish Blue, Natural Color, VVS1 clarity.

Sotheby's. Important Jewels. New York | 20 Sep 2012 - www.sothebys.com